The only game I tried on my MacBook Pro early 2011 13" via steam was Counterstrike Source. It worked perfectly. Even though my MacBook only has a HD3000 graphics, CS ran perfectly smooth.
I tried iRacing on my MacBook Air 2013 11" and it also worked fine. I didn't mess with graphics settings and just ran the defaults as setup automatically by the installer. It ran smooth with ok quality. It's no way as pretty looking as on my Windows desktop PC but more than playable. Was getting around 60 FPS if I remember correctly.
I tried iRacing on my MacBook Air 2013 11" and it also worked fine. I didn't mess with graphics settings and just ran the defaults as setup automatically by the installer. It ran smooth with ok quality. It's no way as pretty looking as on my Windows desktop PC but more than playable. Was getting around 60 FPS if I remember correctly.